The tax consequences of remote work have settled into a stable but uncomfortable shape. The pandemic-era relief provisions that temporarily suspended nexus consequences are gone. What remains is the pre-existing law applied to a workforce distribution nobody designed for — and the pre-existing law is generally that an employee working in a state creates obligations in that state.
For payroll, this means the department has become the first line of detection for a company-wide tax exposure. When an employee relocates, payroll usually finds out first, and what payroll does in that moment determines whether the company registers voluntarily or gets found.
The word "nexus" gets used for two different things, and conflating them causes companies to worry about the wrong one.
Payroll tax nexus is nearly automatic. An employee performing work in a state generally creates income tax withholding and unemployment insurance obligations there from the first day. There is rarely a threshold, a grace period, or a materiality test. This is the certain consequence.
Business tax nexus is broader and more consequential — corporate income tax, franchise tax, gross receipts tax, and sales tax collection obligations. Here the analysis is more nuanced, but one fact matters enormously: a remote employee working in a state is frequently sufficient to create business tax nexus on its own, because an in-state employee is physical presence.
The exposure asymmetry is what surprises executives. Payroll registration in a new state is an administrative nuisance. A corporate income tax filing obligation in that state — with apportionment consequences and potentially years of unfiled returns — is a materially larger problem, and it was triggered by the same event.
This is why the payroll department's location-change control is a company-level risk control, not a departmental one. Our Multi-State Taxation training covers the payroll side, and the business tax question should be routed to tax or external advisors as soon as payroll detects the move.
During 2020 and 2021, many states issued temporary guidance stating that an employee working remotely due to a government order would not create nexus, and that withholding could continue as though the employee were at their pre-pandemic location.
All of that relief has expired. Two practical consequences persist:
Some companies never unwound the temporary treatment. Payroll systems configured in 2020 to keep withholding for the office state have, in some cases, simply kept doing it. Those companies have been withholding for the wrong state and failing to register in the right one for years, with penalties and interest compounding the whole time.
Employees still believe the relief exists. Expect pushback when you correct withholding, because the employee remembers a rule that no longer applies.
If you have not audited your remote population against actual work locations since the relief expired, that is the single highest-value review available to you. Our How To Handle Payroll Audits & Penalties page covers the self-audit approach.
A small number of states apply a convenience of the employer rule, and it produces the most counterintuitive result in this area.
Under such a rule, if an employee works remotely for their own convenience rather than because the employer requires it, the state treats the wages as sourced to the employer's location — meaning the employer's state taxes income earned by someone who never set foot there during the period.
The consequences:
That last point is the actionable one. If a remote arrangement is genuinely required by the business — the role is designated remote, there is no assigned office space, the position was posted as remote — say so in writing at the time. Retroactive characterization is far less persuasive than a contemporaneous record.
Most employers assume there is a safe threshold for incidental work in another state. Sometimes there is, and it varies widely.
There is no uniform federal rule harmonizing this, despite recurring legislative proposals. The practical consequence is that a traveling salesperson, a technician covering a multi-state territory, or an executive attending quarterly meetings in another state can create obligations that nobody tracks.
Realistic controls:
Remote work makes it tempting to assume unemployment insurance follows income tax withholding. It does not. Unemployment wages are reported to one state per employee, determined by a four-part test applied in order: localization of service, then base of operations, then place of direction and control, then employee residence.
For a fully remote employee working entirely from home, localization usually resolves to the employee's home state. For an employee splitting time, the analysis can land somewhere other than where you withhold income tax.
Getting this wrong has a multiplier: unpaid contributions in the correct state carry penalties and interest, and the error jeopardizes the federal FUTA credit, since the 5.4% credit reducing a 6.0% rate to 0.6% is conditioned on timely payment to the correct state. See our Form 940 and Federal-State Unemployment Overview session.
Remote employees do not import their previous state's employment rules. They acquire their actual work state's rules — all of them:
The exempt threshold item deserves emphasis because it is so easily missed. An employee who was properly exempt in one state can fail the salary test on relocation, converting them to non-exempt and creating overtime liability from the date of the move.
Our Payroll Wage & Hour Training & Certification Program covers the wage and hour side, and final paycheck requirements covers termination timing by state.
An employee working from another country is a categorically different problem, and the instinct to treat it as a slightly harder version of a state move is dangerous.
The issues include foreign income tax withholding and local payroll registration, social security coordination governed by totalization agreements, permanent establishment risk creating a corporate tax presence in that country, local labor law that may attach mandatory protections regardless of the employment contract, and immigration status permitting work.
None of this is resolvable inside the payroll department. The correct response to "I'm working from abroad for a few months" is escalation, before the first payroll in that arrangement. See our inpat and expat payroll rules page and the Payroll Rules For Inpat & Expat Payroll session.
A location field that is not the mailing address. Payroll needs to know where work is performed. Using the mailing address as a proxy fails for anyone with a second residence, a recent move, or a long-term travel pattern.
A location-change trigger. Any change crossing a state line generates a compliance task with an owner. This is the single control that prevents the majority of failures.
An annual attestation. Ask every remote employee to confirm their primary work location once a year, in writing. It is cheap, it surfaces undisclosed moves, and it creates a record of reasonable diligence.
A written remote work policy. Require advance approval for a change in work location, state that unapproved relocation may have tax consequences, and reserve the right to decline states where the company will not register. Employers are permitted to limit where they employ people.
A designated escalation path. Payroll detects; tax decides. Make sure the handoff exists and is used, because payroll registration is only the visible part of the exposure.
For payroll purposes, almost always — an employee performing work in a state generally creates income tax withholding and unemployment insurance obligations there from the first day, with no threshold or grace period. For business tax purposes, an in-state employee frequently constitutes physical presence sufficient to create corporate income tax, franchise tax, or sales tax obligations as well, which is usually the larger exposure.
No. The temporary state guidance that suspended nexus consequences and permitted continued withholding for the pre-pandemic office location has expired. Employers who never unwound that configuration have been withholding for the wrong state and failing to register in the correct one, accruing penalties and interest. Employees frequently still believe the relief exists, so expect questions when withholding is corrected.
A rule applied by a small number of states under which wages are sourced to the employer's location if the employee works remotely for their own convenience rather than out of business necessity. It can result in the employer's state taxing income earned by someone who never worked there during the period. Whether the arrangement is employer necessity or employee convenience is a documented fact question, so record the business reason for a remote designation contemporaneously.
It depends entirely on the state. Some impose no threshold, meaning a single day of work triggers a withholding obligation. Others use a day count or a wage threshold, and some apply different thresholds to employer withholding than to the employee's own filing duty. There is no uniform federal rule, so the thresholds must be checked for each state your employees actually enter.
Generally yes. Employers may limit the jurisdictions in which they employ people, and a written remote work policy requiring advance approval for a change of work location is both common and defensible. The alternative — discovering the move after the fact — means registering retroactively in a state you did not choose, with penalties running from the first paycheck.
It becomes a materially different problem involving foreign withholding and payroll registration, social security coordination under totalization agreements, permanent establishment risk creating corporate tax presence, local labor law protections that may override the employment contract, and work authorization. None of it is resolvable within payroll. Escalate before running the first payroll under that arrangement.
Nexus rules, de minimis thresholds, and paid leave programs change frequently, and business tax nexus questions require input beyond payroll. Verify current requirements with each state's agencies and involve tax counsel before concluding that a remote arrangement is free of consequence.
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